Numerical modelling of thermal effects on biological tissue during laser-material interaction

Latinović, Zoran; Srećković, Milesa; Janićijević, Milovan M.; Ilić, J.; Radovanović, J.

doi:10.1088/0031-8949/2014/t162/014041

Cited by 4 publications

(6 citation statements)

References 10 publications

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“…Laser methods of PMMA treatment are considered in numerous articles from various points of view: simulations, experiments with different types of laser devices, industrial applications, material processing for optical components, cutting and shaping of panels, tropheys, fiber applications, etc. [3][4][5][6][7][8][9][10][19][20][21][22][23][24][25][26][27]. The part of the theory used in these descriptions is applicable also for the other transparent materials, composites, glassy and plastic materials.…”

Section: Discussionmentioning

confidence: 99%

Laser beam drilling and cutting of PMMA

Srećković¹,

Karastojković²,

Janićijević³

et al. 2017

Min Metal Eng Bor

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Due to its excellent mechanical, chemical and optical properties, also on fatigue, polymethilmetacrylate (PMMA) is widely used for many purposes. PMMA has a reputation as a material that cannot be machined well, but, its elasticity and toughness enable its shaping by the deformation processes. Laser drilling and cutting are also available techniques for PMMA sheets shaping, used when both mechanical and optical PMMA properties must be preserved. In this work, the influence of CO 2 laser cutting/drilling on transparent and coloured PMMA surfaces is investigated, as well as by the other laser systems. The cut surfaces were investigated by a light microscopy and, on those surfaces, the average surface roughness R a was measured. The material zone affectted by the laser beam during the cutting process was monitored by a thermal imaging, and theoretical simulations of temperature distribution in this area were performed using the various versions of COM-SOL packages.

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Section: Discussionmentioning

confidence: 99%

Laser beam drilling and cutting of PMMA

Srećković¹,

Karastojković²,

Janićijević³

et al. 2017

Min Metal Eng Bor

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“…The instances of LS for light green Algae in 3.9 (Lopatin V. N., 1985) should be modeled through formalisms with special functions or by approximate expressions, with matrix formalisms, polynomials, etc. For spherical geometry, the modeling with single and multilayered structures has been successful so far, as well as inclusion of anisotropic cases for scattering centers (Sreckovic et al, 2014;Ostojic et al, 2014).…”

Section: Some Performances Of Corona Viruses Simulations and Usable M...mentioning

confidence: 99%

Theoretical support of modern issues related to laser techniques, applications of coherent radiation and modern technologies

Srećković

Pelemiš

Ostojć³

et al. 2021

J. eng. process. manag.

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Modern problems of the Earth’s population are increasing in the areas related to the basic concepts of survival of living beings, but also with opposite views, if parallels are made between energy and ecology. Many new technologies are searching for their way towards development and must be viewed from several points of view. In this paper, the issue is addressed through modern laser techniques in terms of obtaining energy for various purposes concerning selected roles in medicine, as well as the impact on flora, fauna and as a support to other technologies both classical and modern. Contemporary attributes of lasers and other quantum generators in terms of coherence, power and intensity densities have significantly increased, although some predictions from the time of the first quantum generator masers, like gammarasers (and X raser) are still relatively far from commercial concepts. Some of the possible contemporary implementations of quantum generators in measurements control and processing schemes, along with other possible applications of various laser types, have been estimated. The paper focuses on the characterization of today’s problems with Covid-19 virus, only from the engineering point of view. The lexical side of the issue is also included, as well as the social management needs with the application of modern technologies, including help from natural sciences.

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“…Note that when the tissue temperature surpasses 40 °C, it is generally subject to physiological alterations such as coagulation, carbonization, and vaporization. [12][13][14] Latinovic et al [15] synthesized an analysis of laser-tissue interaction, considering various tissue types, lasers, and the femtosecond range. Their model, which computes light and temperature distributions, is relevant for simulations in benign prostatic hyperplasia treatment.…”

Section: Introductionmentioning

confidence: 99%

“…[ 12–14 ] Latinovic et al. [ 15 ] synthesized an analysis of laser–tissue interaction, considering various tissue types, lasers, and the femtosecond range. Their model, which computes light and temperature distributions, is relevant for simulations in benign prostatic hyperplasia treatment.…”

Section: Introductionmentioning

confidence: 99%

Leveraging Thermal Properties Data toward Efficient Photothermal Therapy of Mammary Glands

Huang

Fang

Zheng

et al. 2023

Advanced Therapeutics

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Photothermal therapy (PTT) is gaining wide attention in oncological applications. Nevertheless, its efficacy is still being questioned due to the potential deleterious thermal impact on healthy tissues. The comprehension of tissue thermal properties and their role in photothermal heat transfer is critical. In this study, the thermal conductivity of murine mammary gland (MG) tissues (both tumorous and normal) is initially characterized as a function of time post‐tumor cell inoculation. Notably, the tumorous MGs exhibit a mean thermal conductivity of 0.41 ± 0.013 W m−1 K−1, a 28% increase compared to the normal tissue (0.32 ± 0.003 W m−1 K−1). A self‐developed ultra‐fast hot‐wire technique is employed to assess the marginal temperature elevation in thin MG samples. These experimental findings suggest that the thermal conductivity escalates as the tumor advances. Employing a constant‐power laser, variations in therapeutic outcomes are attributed to the synergistic effect of augmented thermal conductivity and tumoral volume. Importantly, these data substantiate that the early commencement of photothermal irradiation effectively stymies tumor advancement. These insights can foster improved early‐stage PTT by calibrating irradiation schedules contingent on meticulous thermal property assessments, thus optimizing therapeutic results.

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Numerical modelling of thermal effects on biological tissue during laser-material interaction

Cited by 4 publications

References 10 publications

Laser beam drilling and cutting of PMMA

Laser beam drilling and cutting of PMMA

Theoretical support of modern issues related to laser techniques, applications of coherent radiation and modern technologies

Leveraging Thermal Properties Data toward Efficient Photothermal Therapy of Mammary Glands

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